Smart Margin Lift (SML) is a minimally invasive technique used in restorative dentistry to elevate deep subgingival margins, making them more accessible for restoration without the need for aggressive crown lengthening or extensive tooth reduction. This method involves carefully isolating the affected tooth, preparing the deep margin, and applying a resin-modified glass ionomer (RMGI) or bulk-fill composite to elevate the margin coronally. Once the material sets, the final restoration-whether a composite, onlay, or crown can be placed without encroaching on the biologic width.SML offers...